Combination-lock



(ModeL) J. H. 86 T. D. MORRIS.

COMBINATION LOOK.

No. 269,954. Patented M112, 1883.

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To all whom it may concern:

bination-Locks, of which the following is a with our improved combination-lock attached.

UNITED STATES,

Pnrn wrv OF ICE- Jens H. MORRIS AND THOMAS 1). MORRIS, or sEwAan, NEBRASKA;

COMBINATION-LOCK.

SPECIFICATION forming part of Letters Patent No, 269,954, dated January 2, 1883.

'Application tiled May 15, 1882. (Model) I Be it known that we, JOHN H. MORRIS and THOMAS D. MORRIS, of Seward, in the county of Seward and State of Nebraska, have inrented a new and useful Improvement in Comclear, full, and exact description, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a perspective view of a cabinet Fig.2 is same view with the door opened. Fig. 3 is a section through a: m of Fig. 2. Fig. 4 is an inside view of locking device.

Our invention relates to that class of locks which depend upon a combination of figures in order to be released or unfastened ;and it consists in a combination of devices hereinafter described and claimed.

To enable others skilled in the art to make and use our invention, we will proceed to describe the exact manner in which we have can ried itiout.

1n the drawings, A represents a cabinet with ourimproved lock attached thereto. This lock is constructed withthe spindle B, which passes through the door, and around the aperture is secured, to the outside of the door, the escutcheou-dial b, stamped with any. desired figures. Onthe end of the spindle is formed the index U, and outside of this extends a flattened portion, 0, of the shank, by means ofwhich the spindle of the lock is readily turned in the aperture. Around the spindle and inclosed within the aperture is a coiled spring, D, the inner end of which is secured to the spindle at cl, while the loose end rests upon the shoulder d within the aperture. The purpose of this spring will he hereinafter explained. On the inner end of thespindle is secured, by a screw-nut, d, a thin circular metal lockingplate, E, provided on its periphery with the serrated flange e, and having a radial slot, 6, through which the catch F on the door-facing passes whenever it is desired to fasten the door. The plate E lies sufficiently closeto the inner face of the door to allow the teeth of the serrated flange e to nearly or quite touch I the door, being kept in this position by means of interposed washers. By pressing upon the outer end of the spindle the coiled spring yields and allows the'spindleB to pass through the door sufficiently far to remove 'the'ser rated flange from contact with the door, so as to admitthe catch F to pass between the face of the door and the teeth of the flange. When ranged, secure the partsin position by the' screw-nutd. Now press upon the spindles so as to pass the teeth of the plates Ebeyond the catches F, and turn the spindles to remove the slots away from their position opposite the catches, and the door is locked, and it is evident that it cannot be unlocked again until each spindle is brought back to the original combination-fiveand seven. Tliecombination may be on any two numbers or any space between numbers. The ordinary mode. used in trying to discover a combination of this kind is defeated by the use of the teeth on the serrated flange, as these render it almost impossible to detect the slots by gently moving the plates around. Tomove the plates it becomes necessary to depress the spring, and when that is done the catch does not come in contact with the'plate, and its slot cannot therefore be discovered. This secures to the public a very simple and effective combination-lock, which will answer all the ordinary purposes for which combination-locks are nsed,and one which is not easily to be thrown out of order,

while an endless number of combinations may be made and any number of spindles and dials may be used.

Having thus described our invention, what we claim as new, and desire to secure by- Letate substantially as and for the purpose set ters Patent,iis V forth. 1 10 In a combination-lock the spindleB pro- Y i v vided with the index 0 21nd spring D, incom- 5 bination with the escutcheon-dial 1), plate E;

provided with the serrated flange e at a right Witnesses: angle thereto, and radial slot 0', and catch F W. T. OLMSTEAD,

H. P. LEWIS.

upon the door-facing, all constructed to oper- 

